JP2006307565A - Stairs structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stairs structure comfortably usable by removing uselessness of operation, by arranging stairs in the best position capable of shortening a traffic line in an ascent-descent. <P>SOLUTION: This stairs structure has a stairs body including a pair of parallel girder members inclining in response to a stairs gradient and a plurality of treads supported by these girder members and vertically separately arranged at a substantially equal interval, an upper support part arranged on an upper story floor and installing an upper part of the stairs body, and a lower support part arranged on a lower story floor and installing a lower part of the stairs body; and is characterized in that the lower support part comprises a side sleeper installed on a side surface of a beam extending between a pair of floor beams in parallel, a front sleeper opposed in parallel to this side sleeper and extended between the pair of floor beams, and an overhang floorboard having both end parts respectively supported by the side sleeper and the front sleeper. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a staircase structure that is used for raising and lowering between upper and lower floors of a building, and that is effectively employed particularly in a three-story or higher building.

  Stairs used by a building user, such as a resident, to move between upper and lower levels are arranged due to restrictions on the floor plan while taking into account the movement flow of the movement. At the same time, in order to ensure the stability of the staircase support strength, a structure that supports the upper and lower ends of the staircase for the main structures such as floor beams and ceiling beams installed at the location of the staircase is adopted. (For example, refer to Patent Document 1).

JP 2001-81924 A

  However, the support structure such as a floor beam and a ceiling beam has its beam lying position determined based on various structural design conditions. Therefore, if these support structures are not in a preferred position on the movement flow line, the staircase arrangement must be changed according to the position of the support structure, and as a result, complicated flow lines are formed and used. Many plans are inconvenient for moving people. Furthermore, in a three-storied or higher building, a staircase that is continuous up and down is displaced from the position of the jiggag, so that a user who goes up and down two or more levels may greatly detour and ascend and descend the staircase.

  Or, to absorb some positional deviation of the support structure, if the slope of the staircase is adjusted, the steep slope exceeding 50 degrees, for example, is formed, or conversely the gentle slope is below 25 degrees. The problem arises that elderly people and unhealthy people cannot climb up and down these stairs.

  The present invention is a side large pull attached to a side surface of a small beam that is parallel and spanned between a pair of floor beams, a front large pull that is parallel to the side large pull and spans between the pair of floor beams, The lower part of the main body of the staircase is basically attached to the lower part of the main body by the lower support part including the extended floor board that is supported by the side large pulling and the front large pulling at both ends. Therefore, it is an object to provide a staircase structure that can be used conveniently without waste of operation.

  In order to achieve the above object, the invention according to claim 1 is directed to a pair of parallel girder members inclined in accordance with a staircase gradient and a plurality of step boards supported by the girder members and spaced apart at substantially equal intervals. A staircase structure comprising: a staircase body including: an upper support portion provided on an upper floor for attaching an upper portion of the staircase body; and a lower support portion provided on a lower floor for attaching a lower portion of the staircase body. The lower support portion is parallel to the side beam attached to the side surface of the small beam spanned between the pair of floor beams, and faces the parallel side of the side beam and spans between the pair of floor beams. It is characterized in that it includes a front large pull, and both end portions include a side large pull and an extended floor board supported by the front large pull.

  In the invention according to claim 2, the small beam has a substantially horizontal H shape in which the upper and lower flanges are connected by a vertical web, and the side pull has a vertical rectangular shape in the vertical section, and the small beam It is fixed to the web of the beam via a side pulling fixture, and the side pulling fixture includes a horizontal U-shaped fitting portion that fits and supports the side pulling, and a small beam side of the fitting portion. The upper and lower horizontal pieces that extend horizontally from the upper and lower ends to the lower beam, and the upper and lower horizontal pieces are bent upward and downward from the tip of the lower horizontal piece, and fixed to the web of the beam. In the invention according to claim 3, the side large pull is a fitting portion of the side large pull fitting through a cushioning sheet that continuously covers the lower surface and both side surfaces. And the cushioning sheet is inserted into the fixing hole of the fitting part, and the cylindrical buffering protrusion prevents the fixing tool and the inner peripheral surface of the fixing hole from rubbing. Characterized in that it has.

  In the invention according to claim 4, the floor beam has a substantially horizontal H shape in which the upper and lower flanges are connected by a vertical web, and the front puller has a vertically long rectangular shape and both ends thereof. The part is fixed to the floor beam web through a front pulling fixture, and the front pulling tool is fixed to a vertical substrate fixed to the floor beam web and an upper portion of the substrate, And an L-shaped fixing portion comprising a lower piece for placing and supporting the lower surface of the front large pulling, a side piece bent upward from one side edge of the lower piece, and a side piece along one side surface of the front large pulling; It is characterized by including.

  In the invention according to claim 1, since the lower support portion can be configured at a position corresponding to various conditions such as the floor height and the staircase gradient with respect to the upper support portion formed by a predetermined floor structure, the floor plan of each floor The staircase can be placed at the best position to minimize the flow of ascending and descending while responding to. And since the lower support part which supports the bottom of a staircase main body is comprised as a solid structure including a side large pull and a front large pull, it can support a staircase main body in the stable state. As a result, vibration during elevation is suppressed, and high comfort is obtained.

  Since the side pulling of the invention according to claim 2 is fitted and supported by the fitting portion, a stable support strength can be obtained, and the assembly work can be easily performed. Moreover, since the said side large pulling is arrange | positioned in front of the upper flange, avoiding the upper flange of a small beam, it can support an overhanging floor board reliably.

  In the invention according to claim 3, the buffer sheet prevents contact between the side large pull and the side large pull attachment and can prevent squeaking noise, and the buffer protrusion projects the fixing tool and the side large pull attachment. Can prevent the rubbing noise. Moreover, since the buffer protrusion is inserted into the fixing hole, the buffer sheet can be prevented from being displaced.

  In the invention according to the fourth aspect, the front overdraw is supported by the L-shaped fixing portion composed of the lower piece and the side piece, so that a stable support strength can be obtained and the assembly work can be easily performed. Further, by changing and adjusting the fixing position of the substrate to the web of the floor beam, it is possible to easily and reliably support the front end portion of the overhanging floor plate formed in various sizes according to the staircase gradient or the like.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, the staircase structure 1 includes a staircase body 4, an upper support portion 5 to which an upper portion of the staircase body 4 is attached, and a lower support portion 6 to which a lower portion is attached.

  As shown in FIG. 1, the staircase body 4 includes a pair of parallel beam members 2 and a plurality of footboards 3. The girder member 2 of this embodiment is formed by a side girder that attaches both sides of the tread plate 3 by dovetail additional fitting that fits both sides of the tread plate 3 into dovetail grooves formed on the inner surface. However, in place of the side girders, it is also possible to configure the treads 3 with a saddle girder that supports them from below. The girder member 2 is formed, for example, by using a long plate that is inclined at about 30 to 35 ° according to a staircase gradient and extends from the lower floor surface to the upper floor surface. Further, as shown in FIG. 7, the girder member 2 is formed with an engaging step portion 34 in which the lower end of the upper end is cut out in a key shape.

  The tread board 3 is formed of a horizontally long rectangular plate, and a plurality of (13 in this embodiment) tread boards 3 lined up and down at equal intervals are bridged between the left and right girder members 2 and 2. The tread surface, which is the depth dimension of the upper surface of the tread board 3, is formed, for example, about 15-25 cm, and the kick-up, which is the height of one step of the tread board 3, is formed, for example, about 15-23 cm.

  The girder member 2 and the tread board 3 are made of soft wood such as cedar, pine, firewood, firewood, or solid wood including hardwood such as oak, teak, lawan, laminated timber processed from these, plywood, particle board, insulation board, MDF (Mid density fiberboard), wood board material, recycled wood powder blended with polypropylene resin, polyethylene resin, etc. Extruded, injection molded artificial wood, other metal materials including steel, reinforced plastic, etc. The

  Further, the staircase body 4 of this embodiment is provided with a kick plate 38 that shields from the rear end portion of the lower step plate 3 and the upper step plate 3. However, it may be configured as a transparent staircase in which the kick plate 38 is not provided.

  As shown in FIG. 7, the upper support portion 5 includes a floor beam 31 that forms the upper floor F <b> 2, and a brace member 33 that is mounted on the upper flange 32 of the floor beam 31. . The floor beam 31 is arranged at the edge of the upper floor F2 where the stairs are arranged, and by fixing the end of the floor panel 37 via the angled panel mounting bracket 36 fixed to the web 35. The upper floor F2 is formed. The floor panel 37 is formed by adding a floor base plate 37B to the upper surface of a panel outer peripheral frame 37A in which a U-shaped cross-sectional material is rectangularly framed. Laying and finishing the floor.

  The engaging step portion 34 of the staircase body 4 is placed and engaged on the brim 33, and is fixed using a fixing tool such as a nail (not shown), a vinyl acetate emulsion adhesive, a dedicated mounting bracket or the like. With this configuration, the load applied to the upper portion of the staircase body 4 is stably supported by the floor beam 31 via the brazing material 33.

  The lower support portion 6 is provided on the lower floor F1, and includes a side large pull 9, a front large pull 10, and an overhanging floor plate 11 whose both ends are supported by the side large pull 9 and the front large pull 10. Have. Further, the lower floor F1 includes a pair of parallel floor beams 7 and 7 and a small beam 8 bridged between the floor beams 7 and 7.

  The floor beams 7 are arranged in parallel with an interval of about 900 to 1500 mm, for example. As the floor beam 7 of this embodiment, a substantially horizontal H-shaped steel plate is used in which the upper and lower flanges are connected by a vertical web W2, and the main beam of the lower floor F1 is formed by spanning between the columns. It is configured as. However, the floor beam 7 can be constituted by a small beam instead of the large beam. In addition, as shown in FIGS. 3 and 4, the floor beam 7 of this embodiment is provided with a vertical receiving plate 40 between the upper and lower flange tips.

  The small beam 8 is formed by using a substantially horizontal H-shaped steel plate in which the upper and lower flanges are connected by the vertical web W1 in the same manner as the floor beam 7. However, in this embodiment, the small beam 8 uses a steel plate having a slightly smaller size than the floor beam 7. Moreover, as shown in FIG. 3, the end beam 41 perpendicular | vertical to the both ends is formed in the small beam 8 of this form. The end plate 41 is bridged between the floor beams 7 and 7 by fixing the end plate 41 to the receiving plate 40 of the floor beam 7 using a bolt or the like.

  As shown in FIG. 2, the beam 8 is fixed to the lower floor by fixing the end of the floor panel 37 having the same structure as described above to one side of the web W1 via an angled panel mounting bracket 36. F1 is formed. Further, a square-wood-like wood base material 42 is attached to the upper part of the upper flange of the small beam 8 to form a floor base surface having the same height as the floor panel 37.

  As shown in FIG. 2, the side large pull 9 and the front large pull 10 are formed by using square bars having the same width and height, and having a vertically-long rectangular section. Further, the side large pull 9 and the front large pull 10 are formed to have substantially the same length as the interval between the webs W2 of the floor beams 7 and 7. Then, the side large pull 9 is fixed to the other side of the web W1 of the small beam 8 by using the side large pull attachment 12. On the other hand, the front large pull 10 faces the side large pull 9 in parallel, and both end portions thereof are fixed to the web W2 of the floor beam 7 via the front large pull attachment 20.

  As shown in FIG. 5, the side large pulling attachment 12 includes a horizontal U-shaped fitting portion 13 that opens upward with substantially the same width as the cut surface of the side large pull 9, and this fitting. The upper and lower ends of the portion 13 on the small beam 8 side extend horizontally from the upper and lower ends to the small beam 8 side, and the upper and lower horizontal pieces 14U and 14D, and the upper and lower horizontal pieces 14U and 14D, respectively, from the top end to the lower side. The upper and lower mounting pieces 15U and 15D are illustrated as being configured to be bent. The side large pulling attachment 12 of this embodiment is provided with a stiffener 43 between the fitting portion 13 and the lower horizontal piece 14D and the lower attachment piece 15D to reinforce the deformation strength. The fitting portion 13 is formed with a fixing hole 17 through which a nail or the like is inserted in a rising piece on the front surface thereof.

  Further, in the side large pulling attachment 12, at least two positions near both ends of the small beam 8, the upper and lower attachment pieces 15U and 15D are fixed to the web W1 of the small beam 8 using bolts or the like. Further, one or more side pulling attachments 12 are fixed to the middle portion of the small beam 8 according to the required strength. The side pulling 9 is fitted into the fitting portion 13 of the fixed side pulling attachment 12 and is fixed by a fixing tool 18 such as a nail or a screw inserted into the fixing hole 17. In this embodiment, the side pulling 9 is preferable in that it can be supported with a predetermined height and a stable strength and can be easily attached by fitting into the fitting portion 13. Further, the side large pull 9 is supported by the upper and lower horizontal pieces 14U and 14D at a front position where the upper flange avoids the upper flange of the small beam 8. Therefore, it is preferable in that the end of the overhanging floor plate 11 can be reliably supported by the upper surface of the side pulling 9.

  Furthermore, in this embodiment, as shown in FIG. 5, the buffer sheet 16 is interposed between the side large pull 9 along the inner peripheral surface of the fitting portion 13. Since the buffer sheet 16 continuously covers the lower surface and both side surfaces of the side pulling 9, it is preferable in that the direct contact between the side pulling 9 and the side pulling attachment 12 is eliminated, and the squeaking noise due to rubbing can be prevented. The buffer sheet 16 is formed using, for example, chloroprene rubber, isoprene rubber, hard polyurethane, high density polyethylene, EVA resin, and the thickness is, for example, about 0.7 to 2.0 mm, preferably 0.9 to It is set to 1.5 mm and 1.2 mm in this embodiment. If it is less than 0.7 mm, the elasticity is insufficient. Conversely, if it exceeds 2.0 mm, the amount of deformation becomes excessive, which may cause unevenness on the floor surface.

  Moreover, the buffer sheet | seat 16 of this form forms the cylindrical buffer protrusion 19 inserted in the adhering hole 17 of the fitting part 13. FIG. The buffer protrusion 19 is preferable in that it covers the inner peripheral surface of the fixing hole 17 to prevent direct rubbing with the fixing tool 18 and to suppress squeaking noise. At the same time, the buffer protrusions 19 are engaged with the fixing holes 17 so that the buffer sheet 16 is positioned, and a positional shift that occurs when the side pulling 9 is fitted can be prevented.

  The front large pulling fixture 20 includes a vertical substrate 21 and a fixing portion 22 fixed to the upper portion of the substrate 21, and is symmetrically formed as shown in FIGS. 6 (A) and 6 (B). The first and second front pulling attachments 20A and 20B are formed and configured. In the present embodiment, the substrate 21 has a rectangular plate shape. The other fixing portion 22 is formed in an L shape including a lower piece 22D extending horizontally from the upper end of the substrate 21 and a side piece 22S bent upward from one side edge of the lower piece 22D. Further, the front large pull attachment 20 of this embodiment is provided with a stiffener 45 perpendicular to both between the substrate 21 and the lower piece 22D.

  As shown in FIGS. 3 and 4, the first and second front large pull attachments 20 </ b> A and 20 </ b> B use a fastener such as a bolt (not shown) and the web W <b> 2 of the floor beam 7 on which the substrate 21 faces. To the same height. The front large pull 10 is placed on the lower piece 22D with both ends thereof along the side face 22S of the fixing portion 22 of each fixture 20 along the side face on the small beam 8 side. Then, the front large pull 10 is fixed by driving a fixing tool such as a nail or a screw inserted through the side piece 22S and the lower piece 22D into the front large pull 10. Thus, since the front large pull 10 is supported on the lower surface and one side surface by the L-shaped fixing portion 22 composed of the lower piece 22D and the side piece 22S, stable attachment strength is obtained, and the front large pull 10 Installation work can be done efficiently.

  Both ends of the extended floor board 11 are supported by the side large pull 9 and the front large pull 10 as described above, and form a floor surface that is integrally continuous with the lower floor F1. In this embodiment, as shown in FIGS. 3 and 4, the overhanging floor plate 11 is composed of a horizontal and rectangular lower ground plate 11 </ b> A and a plurality of joists 11 </ b> B that are spaced apart at regular intervals and parallel to the floor beam 7. Is done. The lower ground board 11A is nail-fixed to the joist 11B, so that the overhanging floor board 11 is configured in a panel shape. And it is bridged on the side large drawer 9 and the front large drawer 10 and fixed with a nail, a screw, a bolt, a dedicated fixture, etc., so that there is no gap with the floor panel 37 and the wood base material 42, A uniform floor surface is formed.

  As shown in FIG. 2, the lower portion of the staircase body 4 is placed on the overhanging floor plate 11 and fixed using nails, screws, bolts, metal fittings, or the like. At this time, the position of the front large pull 10 can be freely adjusted by changing the position where the substrate 21 of the front large pull attachment 20 is attached to the web W2 of the floor beam 7. That is, by forming the overhanging floor plate 11 in a size corresponding to this, the support portion 6 having an arbitrary size can be easily formed at a necessary installation position. For this reason, a lower support portion 6 having a size corresponding to various conditions such as a floor height and a staircase gradient is formed with respect to the upper support portion 5 formed by a predetermined floor structure, and corresponds to a plan of each floor. Stairs can be placed in the best position to minimize the flow of ascending and descending. As a result, in a three-storied or higher building, since the upper and lower stairs can be arranged at the shortest position, a user who goes up and down two or more levels can ascend and descend on the shortest flow line. Moreover, since the lower support portion 6 that supports the staircase body 4 is constructed to have a robust structure including the side large pull 9 and the front large pull 10, the staircase main body 4 is supported in a stable state, and vibrations during lifting are supported. Suppressing, high amenity is obtained.

  The above description is an example of the embodiment of the present invention. Therefore, the technical scope of the present invention is not limited to this, and various modifications are included in addition to the above-described embodiment. That is, in this embodiment, the case of a straight staircase is illustrated, but the present invention can also be applied to staircases of various configurations such as a curved staircase, a turning staircase, and a folding staircase.

It is a front view which illustrates one embodiment of the present invention. It is the principal part longitudinal cross-sectional view. It is the principal part perspective view. It is a principal part perspective view of the different location. It is an expansion perspective view of a side large pull attachment. (A) (B) is a perspective view of the front large pull attachment attached to each right and left. It is a longitudinal cross-sectional view of the stairs upper part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Stair structure 2 Girder member 3 Tread board 4 Stair body 5 Upper support part 6 Lower support part 7 Floor beam 8 Small beam 9 Side large pull 10 Front large pull 11 Overhang floor board 12 Side large pull attachment 13 Fitting part 14 Horizontal piece 15 Mounting piece 16 Buffer sheet 17 Fixing hole 18 Fixing tool 19 Buffering protrusion 20 Front pulling attachment tool 21 Substrate 22 Fixing part 22S Side piece 22D Lower piece F1 Lower floor F2 Upper floor W Web

Claims (4)

A staircase body including a pair of parallel girder members and a plurality of treads that are supported by the girder members and spaced apart at substantially equal intervals, and that is provided on an upper floor, A staircase structure comprising an upper support portion for attaching an upper portion and a lower support portion provided on a lower floor for attaching a lower portion of the staircase body,
The lower support portion is parallel to the side large pull attached to the side surface of the small beam spanned between the pair of floor beams, and faces the front large span between the pair of floor beams. A structure of a staircase characterized in that it includes a pull, and an extended floor plate whose both ends are supported by a side large pull and a front large pull, respectively. The small beam has a substantially horizontal H shape in which a vertical web is connected between upper and lower flanges,
The side pulling has a vertical cross-section of a vertically long rectangular shape, and is fixed to the web of the small beam via a side pulling attachment,
The side large pulling fixture includes a horizontal U-shaped fitting portion for fitting and supporting the side large pulling, an upper side of the fitting portion on the small beam side, an upper portion extending horizontally from the lower end portion to the small beam side, and a lower portion. And a lower mounting piece that is bent upward and downward from the tip of the upper and lower horizontal pieces, and is fixed to the web of the beam. The staircase structure according to claim 1.   The side large pull is fitted into the fitting portion of the side large pull attachment through a buffer sheet that continuously covers the lower surface and both side surfaces, and the buffer sheet is inserted into the fixing hole of the fitting portion, The staircase structure according to claim 1 or 2, further comprising a cylindrical buffer protrusion that prevents rubbing between the fixing tool and the inner peripheral surface of the fixing hole. The floor beam has a substantially horizontal H shape in which the upper and lower flanges are connected by a vertical web,
The front large pull has a vertically long rectangular shape in cross section, and both ends thereof are fixed to the floor beam web through a front large pull fitting.
The front pulling fixture includes a vertical board fixed to the web of the floor beam, a lower piece fixed to the upper part of the board and supporting the lower side of the front large drawing and the lower piece. 4. An L-shaped fixing portion that is bent upward from one side edge and that is formed of a side piece along one side surface of the front overdrawing. Staircase structure.

Images